Yeah, it's the Charles Dickens episode with the 9th Doctor (Eccleston).

Jerry, it would really be worth your time to just go ahead and break down and spend the sixty bucks on the Season One DVD set. Eccleston's Doc is probably the best since Tom Baker. I know everyone loves Tennant, and that's cool. I like his Doctor fine. But, for some reason I'm not ga-ga over his incarnation like 99% of fandom. I just think Eccleston had a more interesting edge to his performance. That's why you should take it from me and go get those DVD's...